Exercise 3: In the link implementation of queue program the following code is missing. Your task is to implement these codes and write a test program to test the MyLinkedListQueue class. 1. Implement dequeue( ) and first () methods 2. Implement QueueEmptyException class to throw queue empty exception whenever user tries to deque an element from the empty queue. 3. Write a test application to run the MyLinkedListQueue class. Add few random Integers to the queue, check queue size and then remove elements from queue and print it on screen. Are the numbers printed in first in first out basis? 4. Using above implementation, create a queue of students (you can use Student class for it) and add five students to the queue. Then remove the students from queue and print their names on screen. Exercise 4: Assume that you are developing a network packet processing system. The system has to handle incoming packets in first come first serve basis. 1. Implement a Packet class (which contains a random unique integer id and a String text message) 2. Create 20 packet instances in a loop and add them to the Queue 3. Write a process function which removes the elements from queue and prints the message contained in the packet on screen if the unique id is an odd number